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December 16, 2019 01:41
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| // Bad | |
| books.forEach(book => { | |
| if (book[title]) { | |
| if (book[author]) { | |
| console.log(book) | |
| } | |
| } | |
| }) | |
| // Good | |
| books.forEach(book => { | |
| if (!book[title]) return | |
| if (!book[author]) return | |
| console.log(book) | |
| } |
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| // Bad | |
| const hoursByDates = {} | |
| hoursByDates['2019-12-01'] = 4 | |
| // Good | |
| const hoursByDate = {} | |
| hoursByDate['2019-12-01'] = 4 |
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